VANCOUVER—British Columbia is gearing up for another heat wave this weekend by opening more cooling centres and redeploying health-care workers as temperatures are expected to soar. Health Minister Adrian Dix said Friday that while more staff will be shifted to emergency rooms, work is underway to keep hospitals cool while workers in long-term care facilities ensure people are hydrated. “Managers have stepped up to work in hospital ERs to make sure people who need immediate medical attention get out of ambulances and into care as quickly as possible,” Dix said, noting residents in parts of the province are already experiencing poor air quality due to smoke from wildfires. He called on citizens to “step up” during the heat wave by checking on isolated people including seniors and those living with chronic conditions. Dix also said jobs were being posted Friday for 85 paramedics and 30 dispatchers following complaints late last …